Refrigerating unit



A ril 20, 1926.

L. J. SCOTT REFRIGERATING UNIT Filed June 8 FIG. 2.

INVEN R FIG. 1.

Patented Apr. 20, 1926.

UNITED STATES LEWIS L. SCOTT, OF ST. LOUIS, MISSOURI.

REFRIGERATING UNIT.

Application filed .Tune 8,

To all whom it may concern: 1 Be it known that I, Lnwrs L. SCOTT, a c1't1- zen of the United States, residing in'the city of St. Louis and State of Missouri, have invented a new and useful Improvement in Refrigerating Units, of which the following is a specification.

This invention relates to mechanical domestic refrigerating units. The object of the invention is to provide a body of metal for storing coldaround which is arranged expansion coils, said metal being provided with freezing compartments.

The usual method is to arrange the expansion coil in a brine tank, said brine tank containing a solution of sodium chloride said brine tank acting as a medium to store cold. It is well known that brine tanks are troublesome to install and give more or less trouble by leaking.

In the accompanying drawings Flgure 1 is a front view which shows the covers and doors to freezing compartments, the expansion coil and metal around which the expansion coil is formed being shown dotted. Figure 2 is a top view of Figure 1. Figure 3 is a side view of the casting on which the expansion coils are formed.

Referring now to the drawin s, the numeral 1 indicates a metal box-like casting which is formed with a base 2, the interior of the box-like casting is arranged to support the trays -3,-'which trays are adapted to contain water to be frozen. 4 is a cover plate which is secured to the casting 1 by screws 5 and which has a door 6 to the interior of the casting 1, through which the trays 3 are entered or removed. The numeral 7 indicates legs which support the casting 1. The door 8 is attached to the cover 4 and leads to a compartment below the base 2 of casting 1 which compartment may be used for freezing meats, etc. 9 indicates a pipe which connects to the discharge side of a condenser (not shown). 10 is an expansion valve. 11 is a pipe connectin the expansion valve with the expansion coil 12. The pipe 11 runs to the bottom of the coil. The expansion coil 12 is formed closely around the casting 1 and runs around the edge of the base 2 and then around the casting 1. The end 13 of the top coil of the ex pansion coil 12 runs to the compressor intake (not shown).

It-will be seen that I have provided a metal body around which are formed the 1922. Serial m5. 566,803.

expansion coils, which metal body will'store cold and which is arranged with two freezing compartments and a front cover to hide the cooling coils with doors to the freezing compartments arranged in the cover.

What I claim is:

1. In a refrigerating system, a hollow metal casting affording a cooling chamber the walls whereof present a thick mass and afford the sole medium for storing cold, said casting having an opening for the entrance into said cooling chamber of articles to be refrigerated, and an expansion coil formed around three sides of said casting and adapted to absorb heat directly therefrom.

2 In a refrigerating system, an upright box-like metal casting having a base and affording a cooling chamber the walls whereof present a thick mass of metal and afford the sole medium forstoring cold, said casting having an opening for the entrance into said cooling chamber of articles to be refrigerated, and a plurality of expansion coils formed around three sides of said castlng and supported by the base thereof, said coils being adapted to absorb heat directly from the casting.

3. In a refrigerating system, an upright box-like casting having a base and one open side and walls presenting a thick mass affording the sole medium for storing cold, expansion coils formed around all but the open side of said casting, and adapted to absorb heat directly therefrom, a cover plate attached to said casting for covering the front side of the expanslon coils, and a door arranged in said cover plate for giving access to the open side of said casting.

4. In a refrigerating system, an upright box-like casting having a base and affording a cooling chamber with one open side and having means to support trays within the chamber, said casting being of relatively great mass and affording the sole medium for storing cold, an expansion coil formed around the vertical wall of said casting at all but the open side thereof and adapted to absorb heat directly therefrom, and a cover plate arranged to cover the front side of said expansion coils and having a door covering the opening into said chamber.

5. In a refri crating system, box-like casting aving a base and providing a cooling chamber arranged to support trays therein, said casting having walls of relatively great mass and affording the sole an upright I medium for storing cold, an expansion coil formed around the vertical wall of said casting at all but. the open side thereof and adapted to absorb heat directly therefrom, a cover plate attached to said casting for covering the expansion coil, a door arranged in said cover plate in association with the opening to said cooling chamber, and means for supporting said casting in a manner to provide a space or compartment below the same. 6. In a refrigerating system, an upright box-like casting having a base and providing a coolin chamber with one open side and arrange to contain trays therein, the walls of said casting being of relatively great mass and affording the sole medium for storing cold, an ex ansion coil formed around the vertical wal of said casting at all but the open side thereof and adapted to absorb heat directly therefrom, a cover plate attached to said casting, a door arranged in said cover plate in association with the open side of said chamber, means for supporting said casting in a manner to provide a space or compartment below the casting, and a door attached to the cover plate and covering said compartment below the casting.

7. In a refrigerating system, a hollow metal casting afi'ordinga cooling chamber and having walls of relatively great mass and affording the sole medium for storing cold, said casting having an opening for the entrance into said coolingchamber of articles to be refrigerated, an expansion coil formed around a part of said castingand adapted to absorb heat direct-1y therefrom, and means for supporting'said castingto provide a refrigerating compartment below the expansion c011.

8. A refrigerating unit comprising, in combination with expansion c0119, a coinbined cooling chamber and heat interchanging element for the expansion coils, surrounded in part by the latter, and comprising a hollow unitary castin having walls of relatively great mass and affording the sole medium for storingcold, the construction providing for the transfer of heat difiectly from the casting to the expansion co s.

Signed at St. Louis this 5th day ofJune LEWIS L. SCOTT. 

